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Protereisma arcuatum
Taxonomy
Rekter arcuatus was named by Sellards (1907). It is an impression. Its type locality is Elmo, Sellards collection, which is in an Artinskian pond limestone in the Wellington Formation of Kansas.
It was recombined as Recter arcuatus by Handlirsch (1922); it was recombined as Protereisma arcuatus by Tillyard (1932); it was recombined as Protereisma arcuatum by Carpenter (1933).
It was recombined as Recter arcuatus by Handlirsch (1922); it was recombined as Protereisma arcuatus by Tillyard (1932); it was recombined as Protereisma arcuatum by Carpenter (1933).
Synonymy list
| Year | Name and author |
|---|---|
| 1907 | Rekter arcuatus Sellards p. 349 fig. 6 |
| 1922 | Recter arcuatus Handlirsch p. 60 |
| 1932 | Protereisma arcuatus Tillyard p. 255 fig. 17 |
| 1933 | Protereisma arcuatum Carpenter |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Protereisma arcuatum Sellards 1907
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Kiessling 2004, Bush and Bambach 2015 | |||||
Age range: Artinskian or 290.10000 to 279.30000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Artinskian | USA (Kansas) | Protereisma arcuatum (111219 111319 111320) Rekter arcuatus (type locality: 21979) | |
| Artinskian | USA (Oklahoma) | Protereisma arcuatum (107405) |